Type J Thermocouple


The type J is also very common. It has a smaller temperature range and a shorter lifespan at higher temperatures than the Type K. It is equivalent to the Type K in terms of expense and reliability.

Type J Temperature Range
Type J Thermocouple Grade Wire Thermocouple grade wire, -346 to 1,400F (-210 to 760C)
Extension wire, 32 to 392F (0 to 200C)
Type J Accuracy: Standard: +/- 2.2C or +/- .75%; Special Limits of Error: +/- 1.1C or 0.4%

Diameters available
1mm, 1.5mm, 3mm, 4.5mm, 6mm, 8mm, 9.5mm, 10.8mm 12.7mm and 19mm.